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Raspberry Pi Pico LAN Tester

Raspberry Pi Pico LAN Tester

Alan

Published May 03, 2026

Original author: MarkuselectronicsOriginal source (new tab)

Raspberry Pi Pico LAN Tester

Project description

Overview When installing or troubleshooting Ethernet equipment, it is often necessary to quickly check whether a LAN port is actually working. Normally, this requires a laptop or a dedicated network tester. A user may need to connect a cable, check the physical link, confirm DHCP operation, verify the assigned IP address, and test basic internet connectivity. The Portable Raspberry Pi Pico LAN Tester project provides a compact and practical solution for this task. This project uses a Raspberry Pi Pico, WIZnet W5500 Ethernet controller, SSD1306 OLED display, LiPo battery charging circuit…

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